CN210151577U - Assembled track beam concrete post-cast groove mouth and template - Google Patents
Assembled track beam concrete post-cast groove mouth and template Download PDFInfo
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- CN210151577U CN210151577U CN201920500723.6U CN201920500723U CN210151577U CN 210151577 U CN210151577 U CN 210151577U CN 201920500723 U CN201920500723 U CN 201920500723U CN 210151577 U CN210151577 U CN 210151577U
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Abstract
The utility model discloses a watering groove mouth and template behind assembled track roof beam concrete, this back watering groove mouth include at least one vertical notch body that runs through precast concrete board, precast concrete board be used for with the steel case assembly, the steel case top surface that all notch bodies correspond is equipped with the shear force nail crowd, this internal reinforcing bar net that is equipped with of every notch, the reinforcing bar net is located shear force nail crowd top, reinforcing bar net embedding precast concrete board. The application should water the notch after, this internal reinforcing bar net that is equipped with of notch, when the notch body back of pouring, even if new and old concrete interface externally load and concrete shrink creep, the crack appears easily under the difference in temperature effect, nevertheless post-cast concrete can stabilize and connect reinforcing bar net and shear force nail crowd, thereby with precast concrete board and the firm connection of steel case, the cohesion between the new and old concrete has been improved through the reinforcing bar net simultaneously, the cracked appearance has been reduced greatly, avoid the potential safety hazard, this post-cast notch simple structure, it is convenient to implement, excellent effect.
Description
Technical Field
The utility model relates to a track traffic field, in particular to assembled track roof beam concrete post-cast notch, template and construction method.
Background
In recent years, with the continuous and high-speed development of economy in China, the consciousness of energy conservation and environmental protection becomes the mainstream of society, and prefabricated assembled building structures in China are gradually accepted by the society. As a novel structure form adapting to the building industrialization process, the prefabricated combined structure becomes a more and more favored structure form for engineers due to the advantages of quick component processing and manufacturing, environment-friendly construction, good economic benefit and the like, and has incomparable advantages and huge development prospects in the future.
The connection reliability between the precast concrete slab and the steel box is the main problem of the steel-precast concrete composite beam, the connection is realized in a post-pouring groove reserved on the precast concrete slab, a shear nail group is arranged in the groove, the shear nail group is welded on the steel box, the main realization form is that the groove is reserved through a template in the precast concrete slab process, the groove is arranged with the shear nail group corresponding to the position of the steel box, and the post-pouring concrete in the groove is used for realizing the steel-concrete combination, so the arrangement and the reservation of the groove become the main work during the precast concrete slab manufacturing, and the post-pouring concrete composite beam has a vital function for realizing the steel-concrete combination in the later period.
However, the connection of the precast concrete plate and the steel box by pouring concrete in the reserved notch has the following problems that the interface of new and old concrete (the concrete of the precast concrete plate and the concrete for connection in the post-pouring notch) is easy to crack under the action of external load, concrete shrinkage and creep and temperature difference, the stable connection of the precast concrete plate and the steel box is influenced, and the operation has potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome and to pour through shear force nail crowd and the connection of post concrete between precast concrete board and the steel case that exists among the prior art, new and old concrete interface externally loads and concrete shrink creep, the difference in temperature effect appears the crack easily down, leads to operating the firm connection of precast concrete board and steel case to cause the influence, leads to the operation to have the above-mentioned not enough of potential safety hazard, provides a watering notch behind assembled track roof beam concrete, template and construction method.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
the utility model provides an assembled track beam concrete post-cast groove mouth, includes at least one vertical notch body that runs through precast concrete board, precast concrete board is used for with the steel case assembly, all the steel case top surface that the notch body corresponds is equipped with the shear force nail crowd, every this internal reinforcing bar net that is equipped with of notch, the reinforcing bar net is located shear force nail crowd top, the reinforcing bar net embedding precast concrete board.
Adopt an assembled track roof beam concrete post-cast groove mouth, this internal being equipped with of notch the reinforcing bar net works as the back is pour to the notch body, even if new and old concrete interface externally load and concrete shrink creep, the difference in temperature effect crack appears easily down, but post-cast concrete can stabilize the connection the reinforcing bar net with the shear force nail crowd, thereby will precast concrete slab with the steel case is firm to be connected, passes through simultaneously the reinforcing bar net has improved the cohesion between new and old concrete, has reduced fissured appearance greatly, avoids the potential safety hazard, this post-cast groove mouth simple structure, and it is convenient to implement, respond well.
Preferably, a steel reinforcement framework is arranged in the precast concrete plate, and the steel reinforcement mesh is connected to the steel reinforcement framework.
Preferably, the mesh reinforcement is welded to the steel reinforcement cage.
Preferably, at least two rows of the notch bodies are arranged along the length direction of the precast concrete slab, and the notch bodies of two adjacent rows are arranged in a staggered mode.
Preferably, each of the rebate bodies is provided with a cast-in-place concrete structure therein after the precast concrete panels and the steel boxes are assembled.
Preferably, the slot body is vertically disposed.
Preferably, the horizontal section of the slot body is rectangular or circular.
Because above-mentioned pouring basin mouth behind assembled track roof beam concrete this internal reinforcing bar net that is provided with of notch, consequently, the tradition notch body shaping template can not be suitable for, therefore the utility model also provides a template of pouring basin mouth behind assembled track roof beam concrete, including cope match-plate pattern and lower bolster, the cope match-plate pattern with the removable compound die of lower bolster, the cope match-plate pattern with the lower bolster is used for locating as above around the notch body, the cope match-plate pattern bottom is equipped with a plurality of half slotted hole, the lower bolster topside is equipped with a plurality of and corresponds half slotted hole, behind the compound die half slotted hole forms the slotted hole, reinforcing bar on the reinforcing bar net passes through the slotted hole gets into to be pour in the precast concrete board region, the cope match-plate pattern bottom with the rotatable butt of length direction axis is followed to the lower bolster top.
Adopt a template of assembled track roof beam concrete back pouring gate, through removable compound die the cope match-plate pattern with set up between the lower bolster boundary line half slotted hole forms the reinforcing bar net the reinforcing bar can pass the slotted hole satisfies above-mentioned assembled track roof beam concrete back pouring gate shaping demand, simultaneously precast concrete slab pours the shaping back, because the influence of factors such as adhesive force and concrete bonding, the cope match-plate pattern is difficult to directly follow extract the form removal on the lower bolster, through the cope match-plate pattern base with the rotatable butt of lower bolster topside, during the form removal the cope match-plate pattern is relative earlier the lower bolster is reciprocal to break the commentaries on classics off with the fingers and thumb, the drawing of patterns of being convenient for, the template simple structure of this back pouring gate, convenient to use, respond well, but reuse.
Preferably, the longitudinal section of the bottom edge of the upper template in the length direction is a U-shaped flange, the longitudinal section of the top edge of the lower template in the length direction is a U-shaped groove correspondingly, and the U-shaped flange is matched with the U-shaped groove.
By adopting the structure, the U-shaped flange at the bottom edge of the upper template and the U-shaped groove at the top edge of the lower template can realize socket joint and relative rotation, thereby being convenient for the stability during die assembly and the rotation and the die stripping during die stripping.
Preferably, the longitudinal section of the bottom edge of the upper template in the length direction is a U-shaped groove, the longitudinal section of the top edge of the lower template in the length direction is a U-shaped flange correspondingly, and the U-shaped flange is matched with the U-shaped groove.
By adopting the structure, the U-shaped flange at the bottom edge of the upper template and the U-shaped groove at the top edge of the lower template can realize socket joint and relative rotation, thereby being convenient for the stability during die assembly and the rotation and the die stripping during die stripping.
Preferably, a plurality of bulges are arranged on one side of the upper template facing the precast concrete slab area to be poured and one side of the lower template facing the precast concrete slab area to be poured.
By adopting the structure, concave holes matched with the bulges can be formed on the side wall of the formed precast concrete plate, and after the notch body is cast in situ, post-cast concrete can fill the concave holes so as to be meshed with each other, increase the contact area between the precast concrete plate and the post-cast concrete, improve the meshing degree between the precast concrete plate and the post-cast concrete and ensure the stable combination between new concrete and old concrete.
Preferably, the upper template and the lower template are steel templates or wood templates.
The utility model also provides a construction method of assembled track roof beam concrete post-cast notch, use as above the template of post-cast notch, this construction method includes following step:
A. arranging a pouring template of the precast concrete plate, and arranging the upper template and the lower template for forming the notch body in the pouring template;
B. inserting the reinforcing steel bars into the slotted holes formed by the half slotted holes of the upper template and the half slotted holes of the lower template to form the reinforcing steel bar mesh;
C. pouring concrete in the precast concrete slab area, and curing and forming;
D. removing the upper form from the upper portion of the precast concrete slab;
E. and hoisting or jacking the precast concrete plate, and removing the lower template from the lower part of the precast concrete plate to finish the prefabrication of the precast concrete plate and the reservation of the notch body.
Adopt a construction method of assembled track roof beam concrete post-cast groove mouth, can utilize the cope match-plate pattern with the lower bolster is quick, conveniently produces above-mentioned assembled track roof beam concrete post-cast groove mouth, simultaneously can convenient and fast's drawing of patterns, this construction method step is simple, convenient operation is respond well.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the assembled track beam concrete post-cast slot opening provided by the utility model is applied, the reinforcing mesh is arranged in the slot opening body, when the slot opening body is poured, even if the new and old concrete interface is easy to crack under the action of external load, concrete shrinkage creep and temperature difference, the post-cast concrete can be stably connected with the reinforcing mesh and the shear nail group, so that the precast concrete plate is stably connected with the steel box, the binding force between the new and old concrete is improved through the reinforcing mesh, the crack is greatly reduced, the potential safety hazard is avoided, and the post-cast slot opening is simple in structure, convenient to implement and good in effect;
2. the template of an assembled track beam concrete post-cast groove opening, through the detachable die the cope match-plate pattern with set up the half slotted hole between the lower bolster boundary line, form the slotted hole that the reinforcing bar of reinforcing bar net can pass, satisfy above-mentioned assembled track beam concrete post-cast groove opening shaping demand, simultaneously, after precast concrete slab pouring shaping, because the influence of factors such as adhesive force and concrete bonding, the cope match-plate pattern is difficult to pull out the form removal directly from the lower bolster, through the cope match-plate pattern base and the rotatable butt of lower bolster topside, the cope match-plate pattern is relative to the lower bolster reciprocal turn off with the fingers and thumb earlier during form removal, the drawing of patterns of being convenient for, the template structure of this post-cast groove opening is simple, convenient to use, respond well, but reuse;
3. by applying the template of the assembled track beam concrete post-pouring slot opening, the U-shaped flange at the bottom edge of the upper template and the U-shaped groove at the top edge of the lower template can realize socket joint and relative rotation, so that the stability during mold closing and the rotational demolding during mold stripping are facilitated;
4. the template of an assembled track beam concrete post-cast groove mouth, the cope match-plate pattern towards wait pour one side in precast concrete slab region with the lower bolster towards wait pour one side in precast concrete slab region all be equipped with a plurality of arch, can be in the shaping precast concrete slab lateral wall on form with the shrinkage pool of protruding adaptation, follow-up after the notch body is cast-in-place, post-cast concrete can fill the shrinkage pool, thereby intermeshing, and increase the area of contact between precast concrete slab and the post-cast concrete, improved the interlock degree between precast concrete slab and the post-cast concrete, guaranteed the stable combination between new and old concrete;
5. application a construction method of assembled track roof beam concrete post-cast groove mouth, can utilize the cope match-plate pattern with the lower bolster is quick, conveniently produces above-mentioned assembled track roof beam concrete post-cast groove mouth, simultaneously can convenient and fast's drawing of patterns, this construction method step is simple, convenient operation is respond well.
Drawings
Fig. 1 is a schematic structural view of an assembled track beam concrete post-cast groove opening of the present invention;
FIG. 2 is a schematic view of the attachment of precast concrete panels to a steel box;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a schematic structural view of a template of an assembled track beam concrete post-cast slot opening according to the present invention;
FIG. 5 is a schematic illustration of the stripping of the upper and lower die plates of FIG. 4;
fig. 6 is a left side view of fig. 5.
The labels in the figure are: 1-precast concrete slab, 11-notch body, 12-reinforcing mesh, 2-steel box, 21-shear nail group, 3-cast-in-place concrete structure, 4-upper template, 41-U-shaped flange, 5-lower template, 51-U-shaped groove, 6-half slotted hole and 7-protrusion.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-3, a fabricated track beam concrete post-cast runner mouth, including at least one vertical notch body 11 that runs through precast concrete board 1, the horizontal cross-section of notch body 11 is the rectangle, follows precast concrete board 1 length direction is equipped with two at least rows notch body 11, adjacent two rows notch body 11 sets up in a staggered manner.
The precast concrete board 1 is used for assembling with the steel case 2, all the notch body 11 corresponds 2 top surfaces of the steel case are provided with shear nail groups 21, each is provided with a reinforcing mesh 12 in the notch body 11, the reinforcing mesh 12 is positioned above the shear nail groups 21, a reinforcing steel bar framework is arranged in the precast concrete board 1, the reinforcing mesh 12 is welded to the reinforcing steel bar framework, and after the precast concrete board 1 and the steel case 2 are assembled, each notch body 11 is internally provided with a cast-in-place concrete structure 3 for connecting the precast concrete board 1 and the steel case 2.
Application an assembled track roof beam concrete post-cast groove mouth, this internal being equipped with of notch reinforcing bar net 12 works as notch body 11 is pour the back, even if new and old concrete interface is in outside load and concrete shrink creep, the difference in temperature effect cracks easily down, nevertheless post-cast concrete can stabilize and connect reinforcing bar net 12 with shear force nail crowd 21, thereby will precast concrete board 1 with steel case 2 stabilizes and connects, passes through simultaneously reinforcing bar net 12 has improved the cohesion between the new and old concrete, has reduced fissured appearance greatly, avoids the potential safety hazard, should post-cast groove mouth simple structure, and it is convenient to implement, respond well.
Example 2
Since the reinforcing mesh 12 is provided in the notch body 11 of the fabricated track beam concrete post-cast slot opening according to embodiment 1, the conventional forming formwork for the notch body 11 cannot be applied.
As shown in fig. 1-6, the utility model provides a template of assembled track roof beam concrete post-cast groove mouth, including cope match-plate pattern 4 and lower bolster 5, cope match-plate pattern 4 with lower bolster 5 is the steel form.
The upper template 4 and the lower template 5 can be detachably assembled, the upper template 4 and the lower template 5 are used for being arranged around the notch body 11 in embodiment 1, a plurality of half-slots 6 are arranged at the bottom edge of the upper template 4, a plurality of corresponding half-slots 6 are arranged at the top edge of the lower template 5, the half-slots 6 after being assembled form slots, reinforcing steel bars on the reinforcing steel bar net 12 enter the area of the precast concrete slab 1 to be poured through the slots, the longitudinal section of the bottom edge of the upper template 4 along the length direction is a U-shaped flange 41, the longitudinal section of the top edge of the corresponding lower template 5 along the length direction is a U-shaped groove 51, the U-shaped flange 41 is matched with the U-shaped groove 51, as shown in fig. 6, because the socket section of the U-shaped flange 41 is arranged at the bottom edge of the upper template 4, the half-slots 6 at the bottom edge of the upper template 4 in fig. 5 are longer than the half-slots 6 at the top edge of the lower template 5, after the upper template 4 and the lower template 5 are matched, the U-shaped flange 41 is inserted into the U-shaped groove 51, and the half slot 6 at the bottom edge of the upper template 4 and the half slot 6 at the top edge of the lower template 5 form the slot shown in fig. 4.
As a preferable scheme of this embodiment, a plurality of protrusions 6 are respectively disposed on one side of the upper mold plate 4 facing the precast concrete plate 1 to be poured and one side of the lower mold plate 5 facing the precast concrete plate 1 to be poured, by adopting such a structure, concave holes adapted to the protrusions 6 can be formed on the sidewall of the precast concrete plate 1, and after the notch body 11 is cast in situ, the concave holes are filled with post-cast concrete, so as to be engaged with each other, increase the contact area between the precast concrete plate 1 and the post-cast concrete, improve the engagement degree between the precast concrete plate 1 and the post-cast concrete, and ensure stable combination between new and old concrete.
By applying the template of the assembled track beam concrete post-pouring slot opening, the half-slotted hole 6 is arranged between the boundary line of the upper template 4 and the lower template 5 of the detachable die to form the slotted hole through which the reinforcing steel bar of the reinforcing steel bar net 12 can pass, the molding requirement of the assembled track beam concrete post-pouring slot opening is met, meanwhile, after the precast concrete slab 1 is cast, because of the influence of factors such as adhesive force, concrete bonding and the like, the upper template 4 is difficult to directly pull out the die from the lower template 5, the U-shaped flange 41 at the bottom edge of the upper template 4 and the U-shaped groove 51 of the lower template 5 can realize socket joint and relative rotation, the stability in die assembly and the convenient rotation and die stripping in die stripping are convenient, the upper template 4 is firstly opposite to the top edge of the lower template 5 to perform reciprocating rotation so as to facilitate the die stripping, the template of the post-pouring notch has the advantages of simple structure, convenience in use, good effect and reusability.
Example 3
As shown in fig. 1-6, the construction method of the post-cast notch of the assembly track beam concrete of the utility model applies the template of the post-cast notch as in embodiment 2, and comprises the following steps:
A. arranging a pouring template of the precast concrete plate 1, and arranging the upper template 4 and the lower template 5 for forming the notch body 11 in the pouring template;
B. inserting the reinforcing steel bars into the slotted holes formed by the half slotted holes 6 of the upper template 4 and the half slotted holes 6 of the lower template 5 to form the reinforcing steel bar mesh 12;
C. pouring concrete in the area of the precast concrete plate 1, and curing and forming;
D. removing the upper formwork 4 from the upper portion of the precast concrete slab 1;
E. and (3) hoisting or jacking the precast concrete plate 1, and removing the lower template 5 from the lower part of the precast concrete plate 1 to finish the prefabrication of the precast concrete plate 1 and the reservation of the notch body 11.
Application a construction method of assembled track roof beam concrete post-cast groove mouth, can utilize cope match-plate pattern 4 with lower bolster 5 makes above-mentioned assembled track roof beam concrete post-cast groove mouth fast, conveniently, simultaneously can convenient and fast's drawing of patterns, this construction method step is simple, convenient operation is respond well.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The assembled track beam concrete post-pouring trough opening is characterized by comprising at least one notch body (11) which vertically penetrates through a precast concrete plate (1), wherein the precast concrete plate (1) is used for being assembled with a steel box (2), the top surface of the steel box (2) corresponding to the notch body (11) is provided with a shear nail group (21), a reinforcing mesh (12) is arranged in each notch body (11), the reinforcing mesh (12) is positioned above the shear nail group (21), and the reinforcing mesh (12) is embedded into the precast concrete plate (1).
2. The fabricated track beam concrete post-cast trough according to claim 1, characterized in that a steel reinforcement cage is provided in the precast concrete plate (1), and the steel reinforcement mesh (12) is connected to the steel reinforcement cage.
3. The fabricated track beam concrete post-cast spout according to claim 2, wherein the mesh reinforcement (12) is welded to the steel reinforcement cage.
4. The fabricated track beam concrete post-cast trough according to claim 1, characterized in that at least two rows of the notch bodies (11) are arranged along the length direction of the precast concrete plate (1), and the notch bodies (11) of the adjacent two rows are arranged in a staggered manner.
5. The fabricated track beam concrete post-cast slot according to any one of claims 1 to 4, wherein each of the slot bodies (11) is used for arranging a cast-in-place concrete structure (3) therein after the precast concrete slab (1) and the steel box (2) are fabricated.
6. The template of the assembled track beam concrete post-cast groove opening comprises an upper template (4) and a lower template (5), and is characterized in that the upper template (4) and the lower template (5) can be disassembled and assembled, the upper template (4) and the lower template (5) are used for being arranged around the notch body (11) according to any one of claims 1-5, a plurality of half slotted holes (6) are formed in the bottom edge of the upper template (4), a plurality of corresponding half slotted holes (6) are formed in the top edge of the lower template (5), slotted holes are formed in the half slotted holes (6) after assembly, reinforcing steel bars on a reinforcing steel bar net (12) enter the area of the precast concrete slab (1) to be cast through the slotted holes, and the bottom edge of the upper template (4) and the top edge of the lower template (5) can be in rotatable abutting joint along the length direction axis.
7. The formwork according to claim 6, wherein the longitudinal section of the lower edge of the upper formwork (4) along the length direction is a U-shaped flange (41), and the longitudinal section of the corresponding upper edge of the lower formwork (5) along the length direction is a U-shaped groove (51), and the U-shaped flange (41) is matched with the U-shaped groove (51).
8. The template according to claim 6, characterized in that the longitudinal section of the bottom edge of the upper template (4) along the length direction is a U-shaped groove (51), and the longitudinal section of the corresponding top edge of the lower template (5) along the length direction is a U-shaped flange (41), and the U-shaped flange (41) is matched with the U-shaped groove (51).
9. Formwork according to claim 6, wherein the side of the upper formwork (4) facing the area of the precast concrete panel (1) to be cast and the side of the lower formwork (5) facing the area of the precast concrete panel (1) to be cast are provided with a plurality of protrusions (7).
10. Formwork according to any one of claims 6 to 9, wherein the upper formwork (4) and the lower formwork (5) are steel or wood formwork.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920500723.6U CN210151577U (en) | 2019-04-12 | 2019-04-12 | Assembled track beam concrete post-cast groove mouth and template |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920500723.6U CN210151577U (en) | 2019-04-12 | 2019-04-12 | Assembled track beam concrete post-cast groove mouth and template |
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| CN210151577U true CN210151577U (en) | 2020-03-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868751A (en) * | 2019-04-12 | 2019-06-11 | 中国建筑第五工程局有限公司 | Notch, template and construction method are poured after a kind of assembled track girder concrete |
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2019
- 2019-04-12 CN CN201920500723.6U patent/CN210151577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868751A (en) * | 2019-04-12 | 2019-06-11 | 中国建筑第五工程局有限公司 | Notch, template and construction method are poured after a kind of assembled track girder concrete |
| CN109868751B (en) * | 2019-04-12 | 2024-06-14 | 中国建筑第五工程局有限公司 | Assembled track beam concrete post-pouring notch, template and construction method |
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